Carry out the following osmosis experiment: Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now, (a) Keep cup A empty (b) Put one teaspoon sugar in cup B (c) Put one teaspoon salt in cup C (d) Put one teaspoon sugar in the boiled potato cup D. Keep these for two hours. Then observe the four potato cups and answer the following: (i) Explain why water gathers in the hollowed portion of B and C. (ii) Why is potato A necessary for this experiment? (iii) Explain why water does not gather in the hollowed out portions of A and D.

1

Answers

2015-12-28T17:10:56+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Here is your answer!

Firstly, water gathers in the portion of the set up B and C in the hollowed portion say.

The water will enter the potato as a result of osmosis, then, since the medium surrounding the cell has a higher water concentration than the cell, which means the water moves inside by osmosis.

Potato A will react as control set-up.

Water doesn’t gather in the hollowed portions of potato A, because it’s empty.

Water is not able to enter potato D because the potato D is boiled.

The boiling will disrupt the cell membrane and for osmosis, a semi-permeable membrane is required.

So the water will not enter the boiled potato cup.
0